Device sensed, but collection failed

Attempting to gather the inventory information for a couple of Cisco Catalyst 2950G 48 EI Switches. Ciscoworks had problem gathering information from one of my switches. I checked if there's any differences in configuration, routing, or IOS versions. No differences except for management IP address.

Cisco Application Control Software (ACSW)TAC support: http://www.cisco.com/tacCopyright (c) 2002-2009, Cisco Systems, Inc. All rights reserved.The copyrights to certain works contained herein are owned byother third parties and are used and distributed under license.Some parts of this software are covered under the GNU PublicLicense. A copy of the license is available athttp://www.gnu.org/licenses/gpl.html. loader: Version 12.2[120] system: Version A2(2.3) [build 3.0(0)A2(2.3)] system image file: [LCP] disk0:c6ace-t1k9-mz.A2_2_3.bin installed license: ACE-08G-LIC ACE-SEC-LIC-K9